I never used Sass or a bundle manager of sort and I would like to start learning Sass using Webpack head on.
I spent quite some time watching tutorials on how to configure web-pack, which I understand will be needed for React also, but I’m getting a bit lost because all the tuts I found are a bit generic and don’t help with getting me on track for what I am specifically trying to do.
I would really need help on how to configure Webpack in order to work simultaneously with Sass and Browser-sync, which I have been using already for some time on its own.
Can you help me figure out how to start by explaining me the first steps of the process or at least point me to some resource on point with what I am trying to achieve here?

If you don’t mind spending a little money, the “Git a Web Developer Job” course on Udemy is really good at explaining how to use various Node.js packages including gulp, webpack, and browser-sync, and should get you started. It doesn’t cover Sass specifically, but figuring out how to install it should be a piece of cake once you follow the course on installing PostCSS (another CSS pre-processor). Of course, don’t buy any course on Udemy until they do one of their frequent $10 sales.